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**cspan1986** If an earthquake has an intensity of x, then its magnitude, as compounded by the Richter Scale, is given by R(x) = log x/I sub 0, where I sub 0 is the intensity of a small measurable earthquake. (consider I sub 0 = 1 for this problem). If one earthquake has a magnitude of 4.4 on the richter scale and a second earthquake has the magnitude of 5.8 on the Richter scale, howe many times more intense (to the nearest whole number) is the second earthquake than the first?

A) 6

B) 15,848,931,925

C) 25

D) 21